1.540000+3000=5430002.30000-25000-2000=30003.(-8+10)/(600+400)=0.002 800*(1+0.002)=801.64.190+10+20=2205.1200-20=11806.80*6%/12=0.47.100000*(1+17%)*(1-2%)=1146608.58-2-(60-10)=69.80+(800-200)*10%-20=120
